Electromechanical lamp



l' mechanical lamp,

Parental July 24, 192s.

- I 1,678,496' j vumrnn- STATES PATsNroI-feics.

cuantas BERNAscoNI AND BENLMARIE nnnrnmn, or GHAMBEBY, savor, ramon,

v fnnnc'rnomncnamcan muy.

applicati@ mea July 2s, 1927, serial no.

The object of the inventionis an electrothat is to saypa lamp com prising a magneto-electric machine, a mechanism serving to set intov motion the movable portion of the machine, an incandescent lamp,l a casing shrouding the whole.

It is characterized by the vfact that the casing is divided into several shells made of moulded material and by thefact that the fixed portion of the machine, the fixed mem bers ofthe mechanism, the bearings ofthe shafts yof the machine and of that the con -necting members connecting the'machine to `the1ncandescent lamp are maintalned 1n position solely by their connementin the material forming the casing'at the moment of moulding, with the object of simplifying the manufacture of the lamp. p

A method for the 4manufacture of this lamp is characterized by the fact that the material which is to form each of the shells of the casing is placed inan open mould, the necessary lholes and compartments are obtained with the aid ofl a primary punch for which place them the fixed portion of the machine, the fixed members ofl the mechanism, the bearings of the shafts of the machine and of that the connecting members, by compressing the material, this fixed Y fixed members of the mechanism, the. bearof the shafts of the machine and of that visionally to one or several other punches in the previously prepared compartments,and are secured by compressing the material a little more, the provisional subjection being then such that it breaks down.

. The accompanying drawing represents by way of example one embodiment of the lamp constituted by a pocket lamp. 4

Figures 1 and -2 are two longitudinal sections showing certain parts in different positions.

Figure 3 is a 'front elevation after removing a shell.

Figure 4 is an end view. l

The magneto-electric machine of this embodiment comprises a rotatable inductorl 1` anda fixed armature 2.

The inductor lhasa permanent magnet 3 in the form-of ai disc cutaway at 6 in such a manner as to have four peripheral `poles 4 E mature, Ahaving also the anda body 5 of a heavy metal such as lead intended for increasing the mass of the ar portion of the machine, thev 35 of metal plates lside is in relatlon form of a disc and 208,925, and in Switzerland August l1i), 1928.

lotherwise filling mthe cut-away portions of the magnet; the whole constitutes a cylinder n terminating in two plane circular faces. It

is scotched toa shaft 7 carrying a pinion 8` meshing with aA toothed wheel 9 ri 'dly mounted on 'a shaft 10 provided with a oose pmion 11 with which engages a toothed rack 12. This is indented in a bar 13 which on `the one hand i's submitted to the action of a spring 14 effecting the compression,` on the other hand is provided with aI curved handle 15 uponv which the hand holding the lamp acts to put the inductor 1 into rotation;

the spring `14: is disposed on arod 70 running in the bar 13. Between the pinion 11 and lthe wheel 9 is interposed a couplingdeviceV 16 which enables the pinion to drive the Wheel while it moves in a directioncorre- A spending to the displacement of the rack 12 under the action of the hand.. The bar 13 is partially located in a guide 17 of rectangular tubular vsection cut away' at 18 for the passage of the'pinion 11 and at 19 for'that of a cleat 20 limiting the run of this bar 13 towards the exterior under the action of the sprin 14. i

A lbolt 21 in the the fixation of 13 at Willl in its interior position by penetrating into one ofthe intermediary teeth. Its long shank is located in a groove 77 of the casing 40 Vand is slightly curved-in in such a manner `as not to be capablel of displacement too easily; its short end is located in a recess 78 opening towards form of a square enables the outside and makes a projection outside so that it may be acted upon with the aid of the finger. The ends of the shafts 36 presenting both of these sockets. 4

The fixed armature 2 comprises two parts 22, 23 of magnetic material in the form of crescents and surrounding the inductor 1 as well as twofbobbins 24, 25. These latter are in vseries'by means of a conductor'26; the bobbin 24 on the other hand is connected by a conductor 27 to a folded resilient foil in engagement with which is a peripheral contact 29 of a socket 71 having an internal thread receiving the screwed bottom' 30 of the electric lamp 31; the bobbin 25 on its by a conductor 32 with a resilient foil 33 in the shape of a U which a-oentral insulated contact 34 of the bottom 30 touches. Y

In the casing 4:0v use is made of 4a cavity 62 having the general shape derived from a body of revolution and receiving the socket 71, a circular reflector 65 rigid therewith, a lens 64 located in a split casing 65 maintained in position in the cavity by elasticity and in turn holding the socket 71 in place. In order to be certain that this socket 71 always occupies the desired position to ensure connection between the foil 28 and the contact 29 it is vprovided with .two cheeks 60 and the cavity 62 has two corresponding recesses 61.

The casing 40 is divided into two shells 4l, 42 of which the exact removable assembly is obtained by the aid of three hollow split plugs 43 carried by one of these as well as by integral sockets 44 in the otherA shell and receiving the plugs; these latter terminate at their free ends in a truncated conical part 45 of which the major base is located on the outside and which resides in an enlarged part 46 of the corresponding -socket 44 in order to prevent the separation of 41, 42 from taking place too easily. The more the shell is provided with cavities 47 the less depth is there on that of its faces which attends the other shell; they contain an adhesive material maintaining the two shells 41, 42 assembled.

The portions 22, 23 carrying the bobbins 24, 25, the plates 36, the guide 17, the foils 28, 33, the conductors 26, 27, 32, the plugs 43, the sockets 44 are fixed in the shells 41, 42 by the fact that they are embedded, while moulding, in the material of which these are made, an insulating synthetic resin for eX- ample, the conductors 26, 27, 32 are located in grooves 49, 50, 51 of the interior face of the shell 42.

Behind the plates 36 are the cavities 72 receiving a spongy material 73 steeped in oil which does not become rancid or thick, and

communicating by channels 74 with the inside of the sockets. to ensure lubrication of the shafts 7, 10.

In this manner of assembly of the entire lamp and the assembly of the two shells 41, 42, it takes place without the aid of any threaded or screwed portion with the exception of socket 29 and the bottom 30.

The following maybe taken as an wample for the manufacture of the embodiment above: i

The material to form the shell 42 for ex ample is placed in an open mould and is maintained in a pasty condition, then yvith the aid of a primary punch descending into the mould are produced the necessary holes and the desired compartments for receiving the plates 36 with the spongy material for steeping in oil the portion 22, 23, the bobbins 24, 25, the foils 28, 33, the conductors 26, 27, 32, the spring 21, the guide 17, the plugs 43. Then upon a second punch these different parts are disposed at the desiredposition and are secured provisionally thereto, the armature 2 by means of an electromagnet, the other parts with the aid of an adhesive. Once this is done the second punch is 'caused to descend into the mould a little lower than the first; the different parts enter the prepared compartments, penetrate to a certain extent into thel material and are retained by this which xes them in place; at the moment when the second punch rises the circuit .of the electro-magnet is broken; on the other hand, the resistance of the adhesive is less great than the adherence of the compressed material, so well that all the parts leave the second punch and remain in the positions taken.

The moulding of the shell 41 is proceeded with in the same manner.

There only remains then to put the bolt 21 in its compartment, an adhesive in the cavities 47, to assemble the two shells 41, 42 with the aid of the plugs 43 and the sockets 44, to put in place the socket 29, then the lamp 31 in the same and finally the case 65 which maintains the'whole.

The moulding of the shells may be effected either cold or hot, with a varying pressure according to requirements. The material may, during moulding, be liquid, semi-fluid. solid (in powder form for example).- For bringing the various parts into the mould one may utilize not only a single punch, but several each carrying some of these parts and descending in succession into the mould.

The control mechanism for the lamp may of course differ from that which is illustrated. The machine could comprise a fixed inductor and a rotating armature.

The lamp need not be a pocket lamp and could be for. example a guard lamp, a lamp for lighting cycles and motor, cycles.

What we claim is:

1. In an electro-mechanical lamp the combination, with a magneto-electric machine, a mechanism serving to put into movement the movable portion of the machine, an incandescent lamp, of a casing enveloping the whole and dividedv into several shells made of moulded material, the fixed part of the machine, the fixed members of the mechanism, the bearings of the shafts of the maconfinement 1n lng during moulding.

. the

the machine, the fixed members of the mech'- anism, the bearings of the shafts of the Ina-- chine and of the mechanism, members connecting lthe machine to the incandescent lamp being maintained in position solely by their the material forming the casf B. In an electro-mechanical lamp the 'combination, With a'magneto-electric machine, a mechanism serving 'to put into movement the movable portion ofthe machine, an incandescent lamp, of a casing enveloping the whole and divided into several shells made of ymoulded material and provided with hollowsplit plugs and 'with `socl'rets receiving plugs for ensuring the exact position of i the shells one lwith relation to the other, the

' the mechanism, the

`members connecting plugs, the sockets, the fixed part of thecmachine, the fixed members of the mechanism, the bearings of the shafts of themachineand of the mechanism, the members connecting the machine -to the incandescent lamp being maint-ained in position solely by their confinement in the material forming the casing durin moulding.

4. n an electrofmechanical lamp the combination, with a magneto-electric machine, a' mechanism serving toput into movement the movable portion'of the machine, an incandescent lamp, of a casing enveloping 'the' Wh0le"'nd dividedinto several shells made of moulded material and providedV with holf low split -pluo's with enlarged free end and correspondingly shaped sockets `'receivin the plugs, sald plugs, the sockets, the fixe part of the machine, I

bearings of the shafts of of the mechanism, the the machine to the inl candescent lamp being maintained in position solely by their confinement in the materialformmg the casin during moulding.

5. In an electro-mec anicallamp the oomthe machine, and

bination, @with a magneto-electric machine, av

mechanisnserving to put into movement the movable p rtionof'the machine, an incandescent lam', of a casing envelo' ing the Whole and 'vided into several she ls made of moulded material,l the machine, the 'fixed members of the mechathe lcasing ,during moulding,

nism, the bearings'of theA shafts of the malamp being maintained in position solely by their' confinement in. the materiall forming cavitiesx being formed between'the bearin and the material lubricant and communicatingfbj channels with the interior of the bearings.

6. -In @electromechanical lamp the-com.-

' bination with a magnetoelectric`machine, a'

mechanism 'serving to put into movement ther i movable portion of the machine, an incanthe fixed members ofl 3 fixed members of the fixed part of the.

the membersA of, the shafts of the casing, receiving a chine and of the mechanism, the members Aconnecting the machine tothe incandescent lamp beinfrmaintained in position solely by their confinement in thematerial forming the casing during moulding, cavities being formed between the bearings of the shafts, and the material of the casing containing a spongy material impregnated withlubricant and communicating by channels with the interior of the bearings.

7 ,In an electro-mechanical lamp the com- 'bination with a magneto-electric machine, a mechanism serving to put into movement `the movable portion of the machine, an incandescent lamp, of a casing enveloping the Whole and divided into several shells made of moulded' material, the fixed part of the machine, `the fixed members of the mechanism, the bearings of the shafts of the machine andotl the mechanism, the members 'connecting the machine to the incandescent lamp bein maintained in position solely by their con nement in the material forming the casing during moulding, the members connecting the machine to the incandescent glamp being located in grooves formed in the interior face of one of the shells. i

8. In an electro-mechanical lamp the combination with a magneto-electric machine, a mechanism serving'to put into movement the movable portion of the machine, an incandescent lamp, of a casing enveloping the whole and divided into several shells made of moulded material, one of which presents on its interior face cavities containing an adhesive preventing the easy separation ofthe shells, the fixed part of the machine, the

l mechanism, the bearings of the shafts of the machine and of the mechanism, the members connecting the maL chine to the incandescent lam being maintained in position solely by their confinement in the material 'forming the`casing during. moulding.

bination with a magneto-electric machine, a mechanism serving to put into movement 'the movable portion of the machine, an incandescent lamp, of a casing enveloping the whole. and 'divided into several shells made of moulded material, the xed part of the machine, the fixed members of the mechanism, the bearings of the shafts of the machine and of the mechanism, the members connecting the machine to the incandescent 9. -In an electro-mechanical lamp the com-v lamp bein maintained in position solely by `their con nement in the material forming the casing obtained by moulding in the casing receiving a bolt intended to lock the mechanism at one during'moulding, a compartment.

position of rest and being in the form of an one arm of which acts upon the mechanism and is slightly curved in so that it cannot be too easily displaced in the compartment, While the other arm forms a projection outside the casing and may be actuated by hand.

10. In an electro-mechanical lamp the .combination with a magneto-electrical machine, mechanism serving to put into movement the movable portion of the machine, an incandescent lamp, of a casing enveloping the Whole and divided into several shells made of moulded material, the fixed part of the machine, the iixed members of the mechanism, the bearings of the shafts of the machine and oit' the mechanism, the members connecting the machine to the incandescent lamp being maintained in position solely by their confinement in the material forming the casing during moulding, a cavity provided in the casing receivins.r a socket in which resides the bottom of the incandescent lamp and which is maintained in place in a removable manner by a split casing bearing against the Wall of the cavity.

11. In an electro-mechanical lamp the combination with a magneto-electric machine, a mechanism serving to put into movement the movable portion of the machine, an incandescent lamp, of a casing enveloping the Whole and divided into several shells made of moulded material, the xed part of the machine, the Ifixed members of the mechanism, the bearings of the shafts of the machine and of the mechanism, the members connecting the machine to the incandescent lamp being maintained in position solely by their confinement in the material forming the casing during moulding, a cavity provided in the casing receiving a socket .in which resides the bottom of the incandescent lamp and which is maintained in place in a removable manner by a split casing bearing against the wall of the cavlty, said socket being provided with two cheeks located in corresponding recesses of the cavity, so that it must always occupy a deteI'-,

mined position.

In testlmony whereof we aiflx our signatures.

CHARLES BERNASCONI. REN-MARIE BERTHIER. 

